KR102331394B1 - Optical control device for aerial photography used in aerial imaging system - Google Patents

Abstract

The present invention relates to an optical control device for an aerial photography camera used in an aerial photography system, and more specifically, to an optical control device for an aerial photography camera used in an aerial photography system, which edits an inclined ground object displayed on a completed map using a plurality of aerial photographed video images so that only an accurate plan view of the ground object is output, and through the map produced in this way, prevents deterioration of a processing module by stably and effectively cooling the processing module mounted on an image processor while enabling effective navigation for an area where numerous landmarks are located, such as a downtown area. Through this, the occurrence of errors or defects during image processing is prevented in advance, but the effective shooting is improved through optical adjustment of the aerial photography camera.

Description

Optical control device for aerial photography used in aerial imaging system

The present invention relates to an optical control device for an aerial photographing camera used in an aerial photographing system, and more particularly, by editing an inclined ground object displayed on a completed map using a plurality of aerial photographed image images, It is processed by cooling the processing module mounted on the image processor stably and effectively while ensuring that only an accurate plan view is output, and the map made in this way can effectively guide directions to an area where numerous landmarks are located, such as downtown. An optical control device for aerial photography used in an improved aerial photographing system to prevent module deterioration and to prevent errors or defects during image processing in advance, but to achieve efficient photographing through optical adjustment of aerial photographing cameras is about

Geographic Information System (GIS) is an information system that integrates and processes geographic data occupying a spatial location and related attribute data. It is the total body of hardware, software, geographic data and human resources used for storage, updating, processing, analysis and output.

The geographic information system (GIS) is one of the information systems for efficiently utilizing geographic information necessary for human life.

GIS here means an activity system consisting of interactions between related components of the real world for the purpose of public use.

Also, in a broad sense, GIS refers to an information system for a series of manipulations from observation and collection of geographic information necessary to support human decision-making ability to preservation, analysis and output.

In this case, the information system is a whole process for making information necessary for decision-making, and includes the creation of various types of information, storage and analysis of information.

Accordingly, the information system can refer to a wide range of functions from information generation, storage, and management functions such as observation and measurement of general information to analyzing stored information and utilizing the analysis results for decision-making.

In addition, aerial photos can be taken for the production of numerical maps used in GIS.

When taking aerial photos, the photographer sets the flight route of the aircraft in advance, attaches a camera to the aircraft, and then takes pictures of the desired target area while flying.

There is a case in which a large number of aircraft simultaneously take high-precision aerial photography of a specific area allocated to it.

However, since the aerial photographed image is taken from an aircraft located at a certain altitude from the ground, other ground objects adjacent to it, except for ground objects located in the vertical direction of the aircraft, are inevitably photographed with their sides included. For reference, the white underlined "Gangnam Jeil Building" building located in the upper left corner of FIG. 1, the white underlined "Poonglim Industrial" building located in the upper right corner, and the white underlined "Meritz Tower" building located in the lower left are the rooftops, respectively. It can be confirmed that the picture was taken not only on the (flat part) but also on the side.

On the other hand, for map production, a plurality of aerial photographed images must be linked together as described above. In this process, aerial photographed images photographed at different locations are partially applied. In the end, as can be seen from the three buildings presented above, in the map produced through the conventional map making method, the three adjacent buildings are tilted in completely different directions even though they are the same map.

Accordingly, the user has difficulty in interpreting the map for an unfamiliar area, and thus feels inconvenient in using the map.

Since such huge big data needs to be processed in a short time, the processing modules are easily deteriorated, and the lifespan is shortened by many life-shortening factors such as poor processing and short circuits, reducing processing efficiency.

Republic of Korea Patent No. 10-0617829 (Aug. 22, 2006) 'Optical device of zoom camera'

The present invention was created to solve the problems in the prior art as described above, and by editing the inclined ground object displayed on the completed map using a plurality of aerial photographed image images, the correct plane of the ground object Only the image is output, and through the map produced in this way, it is possible to effectively guide the route to an area where numerous landmarks are located, such as downtown, while stably and effectively cooling the processing module mounted on the image processor to improve the efficiency of the processing module. In order to prevent deterioration and to prevent errors or defects during image processing in advance, but to achieve efficient shooting through optical control of the aerial photography camera, an optical control device for aerial photography used in an improved aerial photography system is provided. It has its main purpose.

The present invention is a means for achieving the above object, and the camera 200 is installed in the aircraft (100); First and second detection sensors 300 and 310 installed in the aircraft 100 to detect a photographing obstruction object (B) moving under the camera 200; a touch screen panel 400 installed in the aircraft 100 and inputting a control signal for controlling the control unit 500 and displaying output contents according to the inputted control signal; When installed in the aircraft 100 and the aircraft 100 reaches the image capturing area while the aircraft 100 is in operation, the image capturing area is photographed through the camera 200, and an object obstructing the capturing is detected by the sensing sensor 300 during filming. When a signal is received, the image recording area is designated as a re-photography area, and when a control signal to reset the shortest air route of the re-photographed area is inputted from the touch screen panel 400, the shortest air route to the re-photographed area is set, The control unit 500 that transmits the captured image to the image processor 800 of the ground center communicates with the aircraft 100 and transmits the ground reference coordinates, and compares the ground reference coordinates with the position coordinates of the aircraft 100 and shoots In the optical control device of the aerial photographing camera used in the aerial photographing system including;

The camera 200 includes a body housing 1200 having an optical system implemented therein, an imaging unit 1210 exposed at an upper portion of the body housing 1200 , and a telephoto lens exposed under the body housing 1200 . (1220);

A first beam split 1230 is installed directly above the telephoto lens 1220 , and a first reflection mirror 1240 is installed parallel to and spaced apart from the first beam split 1230 , and the first beam split A first magnification lens 1250 is installed directly above 1230, a second magnification lens 1260 is installed directly above the first reflection mirror 1240, and the first and second magnification lenses 1250 , 1260) is completely divided by a barrier rib 1270, and a second beam split 1280 is installed directly above the first magnification lens 1250 to coincide with the directly below of the imaging unit 1210. , a second reflection mirror 1290 is installed directly above the second magnification lens 1260 , and a sliding guide SLG is installed on the upper end of the partition wall 1270 , and the sliding guide SLG is according to this A slider SL for selectively opening the first and second magnification lenses 1250 and 1260 while sliding is provided, and the slider SL is tooth-engaged with a gear GR driven by a motor to be movable. It provides an optical control device for an aerial photographing camera used in an aerial photographing system, characterized in that.

According to the present invention, an inclined ground object displayed on a completed map is edited using a plurality of aerial photographed image images so that only an accurate plan view of the ground object is output, and through the produced map, a number of It prevents the deterioration of the processing module by stably and effectively cooling the processing module mounted on the image processor while enabling effective navigation to the area where the feature is located, thereby preventing errors or defects in image processing in advance. However, it is possible to obtain an improved effect so that efficient shooting is achieved through the optical adjustment of the aerial photography camera.

1 is an image showing the appearance of a conventional aerial photographic map,
2 is a view showing an aircraft, a camera, and a detection sensor for explaining the aerial imaging system according to the present invention,
3 is a block diagram showing a connection relationship between components according to the present invention;
4 to 6 are operational views showing an aerial imaging system according to the present invention,
7 is a block diagram illustrating an image processor constituting an aerial photographing system according to the present invention;
8 is a view showing an aerial photographed image to which an image processor constituting an aerial photographing system according to the present invention is applied;
9 is a view showing a state in which the aerial photographed image of FIG. 8 is colored by the coloring module according to the present invention;
10 is a flowchart sequentially illustrating an image processing method of an aerial photographing system according to the present invention;
11 is a view schematically showing an aerial photographing state for applying the image processing method of the aerial photographing system according to the present invention;
12 is a view showing the appearance of the ground object corrected according to the image processing method of the aerial photographing system according to the present invention,
13 is an image showing a vertical image corrected according to the image processing method of the aerial photographing system according to the present invention;
14 is a block diagram showing a configuration example of an image processor constituting an aerial imaging system according to the present invention and a cooling structure thereof;
15 is an exemplary view showing a vacuum processing structure for dehumidification and dust removal of an image processor according to the present invention;
16 is an exemplary view of a ground reference point constituting an aerial imaging system according to the present invention;
17 is an exemplary view showing an optical control device of an aerial photographing camera constituting an aerial photographing system according to the present invention.

Hereinafter, preferred embodiments according to the present invention will be described in more detail with reference to the accompanying drawings.

First, an aerial imaging system according to the present invention will be described.

An aerial photographing system according to the present invention includes a camera 200 installed in an aircraft 100, as illustrated in FIGS. 2 and 3; first and second detection sensors 300 and 310 installed in the aircraft 100; a touch screen panel 400 installed in the aircraft 100; a control unit 500 having a wireless communication module installed in the aircraft 100 and transmitting the captured image to the image processor 800 of the ground center; and a ground reference point 900 that communicates with the aircraft 100 to transmit ground reference coordinates, compares the ground reference coordinates with the position coordinates of the aircraft 100, and guides to obtain a processing reference point of the photographed image.

At this time, the aircraft 100 is provided with a main body 110 and a support 120 installed on the lower portion of the main body 110 .

In addition, the camera 200 is installed in the lower portion of the body 110 as a conventional one used for aerial photography.

And, the first detection sensor 300 among the first and second detection sensors 300 and 310 is installed on the lower surface of the tip of the aircraft 100 to detect the interference object, that is, the photographing obstruction object (B) in advance, and the second The detection sensor 310 is installed on the camera base (not shown) of the camera 200 to detect a photographing obstruction object B that exists directly below the camera 200, and an ultrasonic sensor or an infrared sensor is used. .

In addition, at a distance from the first detection sensor 300, a laser oscillator 320 and a sound wave emitter 330 are further installed. In this case, the laser oscillator 320 and the sound wave emitter 330 operate at the same time according to the control signal of the control unit 500 and oscillate the laser and sound waves in a direct downward direction toward the ground. The camera 200 is prevented from moving downward, and if an object B is detected by the second detection sensor 310 nevertheless, in this case, the shooting of the corresponding point is stopped and the image of the corresponding point is stopped. It is configured so that the precision of the shooting information can be improved by moving again without landing after the entire shooting is finished even if the shooting information is saved and re-shooting.

In addition, the touch screen panel 400 has a touch screen function, and is operated and controlled by the control unit 500 .

In this case, the touch screen panel 400 includes an input menu for inputting a control signal to the control unit 500 and an output menu for displaying output contents according to the control signal.

The control unit 500 receives a photographing area to be photographed and an air route according to the photographing area by a separate terminal device, so that the aircraft 100 moves along the air route, and the camera 200 and the first and second detections It controls the operation of the sensors 300 and 310 and controls the operation of each menu of the touch screen panel 420 .

In this case, the control unit 500 may receive an input of a photographing area and an air route through the touch screen 400 .

In addition, when the control unit 500 receives the detection signal from the second detection sensor 320 , as described above, the control unit 500 identifies the photographing location at the time the detection signal is received and designates it as a re-photography area.

In addition, when the re-photographing route setting signal is input from the touch screen panel 400 , the control unit 500 sets the shortest flight route to the area set as the re-photographing area and displays it on the touch screen panel 400 .

Meanwhile, since it is a known fact that the control unit 500 sets an air route, a detailed description thereof will be omitted.

In addition, the aircraft 100 also includes a GPS sensor 600 , the GPS sensor 600 is a conventional one that receives location information from the GPS satellites 700 and is operated and controlled by the control unit 500 .

In addition, the GPS artificial satellite 700 is a conventional one that provides location information to the GPS sensor 600, and a detailed description thereof will be omitted.

4 to 6 are operational views showing an aerial photographing system according to the present invention, wherein the operator sets the target area to be aerial photographed in the control unit 500 through a separate terminal device as the photographing area, and enters the photographing area. Set the air route accordingly.

When the photographing area and the air route are set as described above, the operator takes off the aircraft 100 and operates the aircraft 100 along the air route.

When the control unit 500 receives the location information for the shooting area from the GPS sensor 600 while the aircraft 100 is in motion, the control unit 500 includes the camera 200 and the first and second detection sensors 300 and 310 . to operate

At this time, as shown in FIG. 5 , when an object B, such as a bird, enters the photographing angle of the camera 200 during photographing of the photographing area of the camera 200, the second detection sensor 310 detects the photographing obstruction ( B) is detected and a detection signal is output to the control unit 500 .

On the other hand, when the target area is being photographed by the camera 200, if a photographing obstruction (B) such as a bird passes within the photographing angle of the camera 200, the photographing obstruction object ( B) is displayed, so accurate video images cannot be taken.

Therefore, the control unit 500 receiving the detection signal from the second detection sensor 310 checks the longitude and latitude of the point where the detection signal is received, and designates the area as a re-photographing point.

However, this process is performed only when it is not free from a structure capable of avoiding the photographing obstruction object B of the camera 200 to be described below.

The worker who has completed all the shooting of the shooting area through the aerial shooting process as described above touches the re-shooting route setting menu 420 of the touch screen panel 400 to re-shoot the point designated as the re-shooting point.

At this time, the control unit 500 sets the shortest air route to each re-photographing point RP, and sets the re-photographed air route AL and the re-photographed point RP to the map menu 410 as shown in FIG. 6 . is shown in

Thereafter, the aircraft 100 moves along the reset flight route, and when the aircraft 100 arrives at the re-photographing point RP, the control unit 500 operates the camera 200 to operate the re-photographing point RP. ) is retaken.

The captured video image is transmitted to an image processor as shown in FIG. 7 under the control of the control unit 500, and is edited and processed by the image processor installed in the ground center.

7 to 13, the image processor according to the present invention is composed of a case (BOX, see Fig. 14), and a plurality of processing modules mounted on the case (BOX) in the form of a server rack; The processing modules include an image DB (1) for storing aerial photographed image data of various regions, a link information DB (1') for storing link information related to ground objects, and specific aerial photographed image data from the image DB (1). An image search module (2) to search, an output module (3) for reading and outputting the searched aerial photographed image data, and a search for a ground object image to be corrected by selecting a specific point in the aerial photographed image output by the output module (3) A point selection module 4 for setting a reference, an image search module 5 for searching a crystal image 20a (refer to FIG. 12(a)) according to the search standard, and a modified crystal object image 20a '; see Fig. 12(b)) to the image editing module 6 for synthesizing and updating by applying the existing aerial photographed image data, and the image drawing module 7 for correcting the corrected ground object image 20a to be corrected. is done

In addition, the image processor according to the present invention further includes a coloring module 8 that checks the color of the ground image included in the aerial photographed image by pixel unit, and adjusts and unifies the pixels within a certain range to a common color. .

In addition, it further includes an identification code link module 9 that links the modified surface image 20a with the related information stored in the link information DB 1' so that the user can easily obtain the related information when using the numerical map. do.

Image DB (1) for storing data, link information DB (1'), and image search module (2) for searching specific data in the image DB (1), its configuration and structure are known, common Since it is a conventional technique used, a description thereof will be omitted here. For reference, the link information DB 1' stores various link information on ground objects, and when the user selects an arbitrary ground object image among the aerial photographed images in the form of a numerical map output by the output module 3 , is output by the identification code link module (9).

Here, the identification code link module 9 processes the output of link information, and when a user selects an image of a ground object, it outputs a separate window in which link information is posted, or operates a web browser to access a related website. can make it happen

This will be described in detail below.

The output module 3 outputs the data searched by the image search module 2 to the known and common touch screen 3a having a screen input function. In the present invention, the data is an aerial photographed image, and the output module (3) is a well-known, common module for outputting an aerial photographed image through the touch screen (3a). Of course, the output module 3 has a function of inputting corresponding information by checking the point where the user touches the touch screen 3a. For reference, the output module 3 can check image data and output it as an image, such as 'Photoshop (Raster graphic editor developed by Adobe Systems)' and 'Paint', a graphic editor for Windows, which is a representative operating system of Microsoft. It would be a normal program.

The point selection module 4 sets a criterion for the image processor according to the present invention to search for the modified surface image 20a in the aerial photographed image, and the reference for the search is the road image ( 30) can be

To explain this in more detail, a road paved with aggregate of a uniform color such as asphalt is located in the area adjacent to the reference ground object (10; see FIG. 11) and the modified surface material (20; see FIG. 11). Since such a road is very close to the reference object 10 or the crystal object 20, the crystal surface image 20a, which shows the appearance inclined toward the road by photographing the side part of the crystal object 20, is a road It is inevitable to occupy the edge portion of the image 30 .

The image processor according to the present invention applies these characteristics, and the point selection module 4 selects a pair of initial points P1 and a pair of end points P2 designated by the user through the touch screen 3a. As a reference, an image within the corresponding range is determined as the road image 30 . That is, the point selection module 4 checks each coordinate value of the initial point P1 and the end point P2 selected by the user and connects them with a reference line, and the reference line formed in this way becomes the boundary of the road and the road image ( 30) is determined.

The image search module 5 checks the color of the road image 30 in which the range and its boundary are determined by the point selection module 4, and then checks the designated color of the pixel corresponding to the edge of the road image 30. , and the color of the road image 30 is compared to check whether it matches.

To explain this in more detail, the image search module 5 confirms the designated color of the pixel corresponding to the previously set reference line, compares the confirmed color with the color of the road image 30, If a section T of pixels designated with the same color while inconsistent with the color of the image 30 is identified, the section T is regarded as the location of the retouched object image 20a and is set as a correction target.

Of course, even if the section T is not confirmed because the designated color of the pixel corresponding to the corrected object image 20a matches the designated color of the pixel corresponding to the road image 30, the designated color of the pixels surrounding the reference line Also, if the same or similar color to the color of the road image 30 is continuously confirmed even in pixels at a position deviating from the reference straight by a certain distance or more, it is regarded as the corrected object image 20a and is set as a correction target. .

On the other hand, as described above, the image search module 5 checks the designated colors of pixels constituting the aerial photographed image one by one and compares the checked contents with the reference straight line to determine the corrected object image 20a. That is, the image search module 5 determines the designated color of a pixel and compares the identified designated color with the designated color of other neighboring pixels to find the boundary. is an important criterion for determining

However, as shown in Fig. 1, since the aerial photographed image is a photograph of the actual crystal object 20, pixels constituting the aerial photographed image are not designated with the same color. That is, as for the crystal ground object 20 to be photographed, its rooftop (flat) has various shapes, various types of facilities (helicopter landing sites, various antennas, water tank facilities, etc.) are installed, and shadows in various directions are formed. , in the corrected ground object image 20a included in the aerial photographed image, the corresponding pixels are each designated with various colors even within the range.

In the end, the image search module 5 must identify the aerial photographed image in a state in which various colors are specified for each pixel, and distinguish the independent crystal object image 20a, and the separated crystal object image 20a is adjacent to Since it is necessary to analyze how it overlaps or interferes with other ground object images or road images 30 , there is a problem in that the load of the system required for the operation of the image search module 5 is excessively increased.

Furthermore, the user must also check whether the search result of the image search module 5 is correct by checking the aerial photographed image output to the touch screen 3a of the output module 3, as shown in FIG. Since numerous ground object images included in the image have similar shapes and colors, it is not easy to visually distinguish between the ground object images and the road image 30 .

In order to solve this problem, the image processor according to the present invention further includes a coloring module (8).

The coloring module 8 clearly distinguishes the ground object images included in the aerial photographed image with various colors, so that the user as well as the image search module 5 can visually distinguish the ground object images easily.

To this end, the coloring module 80 checks each pixel of the aerial photographed image, searches for pixels that are designated with the same or similar color and arranged to have continuity, and connects them in a line to form a boundary line. Here, the continuity means that pixels designated with the same and similar colors are immediately adjacent to each other, and pixels designated with the same and similar colors are within a predetermined interval range. That is, if pixels designated with the same or similar color are arranged in a line within a certain interval range, they are connected to form a boundary line.

On the other hand, if the boundary lines formed in this way are connected in a line to form one end or both ends are cut off without forming a closed section of a certain range, since the boundary line is not the boundary of the ground image, the color of the pixel is set as the background color It is regarded as not an image of a ground object by designating it as a color.

For reference, since the building is constructed of the same aggregate, the image of the ground object photographed of the building will be clearly distinguished by the same color as the border, and the boundary line will be formed along the border.

When the boundary line is determined by the coloring module 8, the designated color of the pixel in the closed section of the boundary line is ignored and they are designated as the same color. At this time, in order to further clarify the visual distinction from the other adjacent ground object images, the coloring module 8 allows the colors applied to the other adjacent ground object images to be contrasted with each other.

Subsequently, the image drawing module 7 modifies the set modified ground object image 20a, and the image editing module 6 applies the modified modified ground object image 20a' to the aerial photographed image and updates it, The identification code link module 9 links the link information stored in the link information DB 1' to the modified surface image 20a' modified by the image drawing module 6, so that the user's modified crystal image When (20a') is selected, the corresponding link information is retrieved from the link information DB (1') and output, which will be described in more detail below.

11 to 13, the image processing method according to the present invention corrects the side part of the ground object photographed during aerial photography, so that the aerial photographed image completed as a map can accurately display only the plane of the ground object, and through this It enables the aerial photographed image to effectively perform the function of the map.

An image processing method will be described as follows.

S11; Revision target selection stage

The output module 3 outputs an aerial photographed image including various ground object images 10a and 20a, and as described above, the point selection module 4 and the image search module 5 provide a modified ground object image 20a. explore and decide

At the time of output by the output module 3, the original aerial photographed image may be output as it is, or the aerial photographed image colored and corrected by the coloring module 8 may be output. It would be preferable to selectively output the two aerial photographed images according to one's own selection.

S12; Revision target reference point setting stage

When the crystal object image 20a is determined, the range occupied by the crystal object image 20a in the aerial photographed image is checked, and the corners of the crystal object image 20a are set as reference points a1 to a6. do. Of course, the corners selected as the reference points a1 to a6 also include the corners a3 and a4 located at the boundary between the flat portion and the side portion of the crystal image 20a as shown in FIG. 12( a ).

To this end, the image search module 5 determines the boundaries of the crystal object image 20a by checking the colors collectively assigned to the pixels corresponding to the crystal object image 20a by the coloring module 8, and thus The reference points a1 to a6 are set by checking the corner portions at the determined boundary.

When the image search module 5 sets the reference points a1 to a6 of the crystal object image 20a, the total width w1 and the plane of the crystal object image 20a based on the reference points a1 to a6 Each of the sub widths w2 is calculated.

For reference, the reference points (a1 to a6) are set, and the image search module 5 checks the coordinate values for the corresponding points through the pixels, and uses these coordinate values to use the known and public calculation method to obtain the modified image ( 20a), the total width w1 and the planar portion width w2 can be calculated. Here, the total width w1 and the planar portion width w2 are the lengths of the entire and the flat portion in the inclined direction of the crystal image 20a.

In addition, since the color designation by the coloring module 8 is to increase the accuracy of the search function and calculation function of the image search module 5, the reference point setting for the correction target and the reference target by the image search module 5 is Upon completion, the aerial photographed image can be restored to its original state, or the color designation by the coloring module (8) is applied to the copy of the aerial photographed image to set a reference point, and then discarded or stored in the image DB (1). There will be.

S13; Standard target selection stage

When photographing the ground from an aircraft in flight, the plane of a specific ground object may be accurately photographed as shown in FIG. 11 . Of course, since it is not possible to photograph only the plane of the reference ground object 10 at 100% and output it to the aerial photographed image, if the user can identify the surrounding road image 30 while being perceived as a flat surface when checking with the naked eye, the reference ground object It will be sufficient to be selected as the image 10a.

On the other hand, the user selects the reference ground object 10 satisfying the above-mentioned conditions as the reference object, but it is preferable to select the reference object 10 in consideration of the location of the modified surface object 20 selected as the correction object. That is, the reference ground object 10 is to select a ground object located on the same straight line as the inclined direction so that the side of the crystal object 20 is visible, and to use it as a reference object.

Accordingly, the image search module 5 forms a search straight line in the direction in which the crystal image 20a covers the road image 30, and the output module 3 outputs the search straight line to the touch screen 3a. , so that the user can input by touching a point to be selected as the reference ground object image 10a among the images located on the search straight line.

S14; Reference target reference point setting step

When the reference ground object image 10a is selected, the image search module 5 checks the designated color of the pixel touched by the user, and sets the range of pixels that are the same as or similar to the color of the reference ground object image 10a. and set the reference points b1 to b4 by checking the corner portion at the boundary determined in this way. Of course, since the pixels corresponding to the reference ground object image 10a are also assigned the same color by the coloring module 8, the reference ground object image 10a will also be precisely defined and set.

When the reference points b1 to b4 are set, the image search module 5 calculates the plane width L1 of the reference ground object image 10a as described above based on the reference points b1 to b4.

S15; Shooting angle calculation step

When the reference ground object image 10a is selected, the image drawing module 7 shoots the reference ground object 10 while the aircraft being photographed is located directly above the reference ground object 10 as shown in FIG. structured by doing

On the other hand, the image drawing module 7 checks the actual center distance d between the reference ground object 10 and the corrected surface object 20 . The center distance d is the distance between the center point within the reference point b1 to b4 of the reference ground object image 10a and the center point within the reference point a3 to a6 of the flat part of the modified ground object image 20a, and then the result value can be obtained by converting to the scale of the aerial photographed image.

In addition, the image search module 2 searches and confirms the altitude h2 of the aircraft and the actual height h1 of the modified ground object 20 when the aerial photographed image is taken from the image DB 1 .

Subsequently, the image drawing module 7 calculates the shooting angle (θ) of the crystal object 20 photographed in the aircraft. Here, the photographing angle θ refers to an angle between the photographing direction of the camera and the arrangement direction of the crystal object 20 . Accordingly, while the aircraft is positioned directly above the ground object 10, the photographing angle θ at which the camera of the aircraft captures the reference ground object 10 will be '0 degrees'.

To calculate the shooting angle θ, the following [Equation 1] is used.

[Equation 1]

S16; Revision target range calculation step

11 and 12 , if the camera of the aircraft is not located directly above the crystal object 20 , the photographed crystal object image 20a is the flat portion and the side portion of the crystal object 20 . is included in the output.

That is, the area in the aerial photographed image that appears to be occupied by the modified surface object image 20a is different from the area obtained by calculating the plane area occupied by the modified surface object 20 on the ground to the scale of the aerial photographed image.

To explain this in more detail, the crystal object image 20a includes a flat portion and a side portion of the crystal object 20 in the crystal object image 20a while the crystal object 20 is photographed at an angle during aerial photography. and, due to this, the above-ground portion not actually occupied by the crystal material 20 is covered by the crystal material 20 . In the aerial photographed image taken in this way, the part covered by the crystal body 20 is also confirmed as a part of the crystal body 20, so that the crystal body image 20a is a larger structure than the actual shape of the crystal body 20. will be visible

Of course, since this error obscures even the road image 30 adjacent to the corrected ground object image 20a from being seen, the user who uses the map produced based on the aerial photographed image feels confused in using the map.

Therefore, in order to solve this problem, by correcting the size of the modified ground object image 20a output to the aerial photographed image, the aerial photographed image is corrected, which produces the same effect as if the aircraft was photographed directly above the modified surface object 20 proceed with

To this end, the image drawing module 7 substitutes the plane width w2 and the shooting angle θ of the modified ground object image 20a in the aerial photographed image to be corrected in [Equation 2], The corrected plane width L2 when the plane of (20) is photographed from directly above is calculated.

[Equation 2]

S17; Revision target image correction stage

The image drawing module 7 completes the corrected image 20a ′ corrected according to the corrected flat width L2 , and stores it in the image DB 1 as data having a separate layer format. In the corrected crystal image 20a', the side portion of the existing crystal image 20a is removed, and the size of the flat portion is corrected to match the corrected flat portion width L2.

Here, the drawing of the corrected image 20a' by the image drawing module 7 proceeds as follows.

First, only the flat portion of the existing modified image (20a) is cut and secured as an independent flat image. The plane image secured in this way is transformed according to the ratio of the width w2 of the plane part of the existing crystal image 20a to the width of the plane part L2 of the corrected plane image 20a'. This transformation is Public image transformation technology can be applied.

For reference, the image transformation technology is 'Photoshop (Raster graphic editor developed by Adobe Systems)', 'Paint', a graphic editor for Windows, which is Microsoft's representative operating system, and 'Paste' an image from a normal word program. As a function widely applied in technology, etc., the image drawing module 7 can determine the ratio of the horizontal and vertical lengths of the image through the above function and adjust the size of the image by the corresponding ratio.

On the other hand, the reference when synthesizing the flat portion corrected by the image editing module 6 is the corners a1 and a2 directly facing the reference ground image 10a. This is because the corners a1 and a2 are always fixed on the ground as compared to the reference ground object image 10a irrespective of the inclined shape of the modified ground object image 20a.

Subsequently, the modified ground object image 20a' takes the form of a separate layer separated from the aerial photographed image, and is linked with the related link information of the link information DB 1' by the identification code link module 9 and stored in the image DB(1).

On the other hand, the identification code link module 9 is configured to output a separate window in which link information is posted, so that when the user selects the modified crystal image 20a' in the layer format, the identification code link module 9 recognizes this and outputs the above window.

Here, since the modified floor plan of the modified modified ground object image 20a' is a ground object such as a building, the link information will be data such as the name, location, size, and use of the ground object.

S18; Image synthesis step

As shown in FIG. 12 , when the correction of the retouched object image 20a' is completed, the processing of the shaded portion D that was not output due to the existing retouched object image 20a being occupied is required. To this end, the image editing module 6 searches for other aerial photographed images in which the actual image of the shaded portion D is taken from the image DB 1 through the image search module 2, and corrects the other aerial photographed images searched in this way. Match the size and resolution of the aerial photographed image including the ground object image 20a'. For reference, since the aerial photographed image stored in the image DB 1 is data performing its function as a numerical map, the aerial photographed image is numerical map data to which GPS coordinates are applied. Therefore, the image editing module 6 checks the GPS coordinates for the shaded part (D), searches the image DB (1) based on this, and searches for another aerial photographed image in which the shaded part (D) is normally output. can

When the size and resolution of the actual image and the aerial photographed image match, the image editing module 6 converts the actual image of the shaded portion D cut out from the other aerial photographed image to the aerial photographing including the modified ground object image 20a'. By synthesizing the shaded part (D) of the image, the shaded part (D) is removed as shown in FIG. 13 (image showing a vertical image corrected according to the image processing method according to the present invention), and a complete vertical image is output make it possible

S19; Vertical image data update step

When the correction of the corrected ground image 20a' is completed, the image editing module 6 inputs and updates the aerial photographed image data in which the actual image is synthesized into the image DB 1 .

The processing modules (M, see FIG. 14) that process such a huge amount of data, that is, big data, emit high heat, and this heat is generated inside the enclosures 810 and 14 constituting the image processor 800. If it is not cooled quickly, the processing modules (M) are easily deteriorated and the lifespan is shortened due to deterioration such as an error occurrence, shutdown due to overload, short circuit due to dust generated inside the housing 810, and the processing efficiency is rapidly reduced. disadvantages arise.

In particular, as in the examples of FIGS. 14 and 15 , in the image processor 800 , the main board B is mounted inside the housing 810 , and a plurality of processing modules M are mounted in the main mode B . It is a structure that is designed to be effective, so it is necessary to implement an efficient cooling means.

To this end, in the present invention, it is possible to have a structure to cool the main board (B) in order to prevent deterioration of such a plurality of processing modules (M) to increase durability to maintain a longer lifespan of the image processor (800). (B) is in the form of a PCB that processes electronic signals, so most of them are cooled using a fan. However, when using a fan, there is a disadvantage that a lot of dust is caught in the fan in a short time, and the cooling efficiency is lowered.

In addition, in the present invention, since soldered marks remain on the back side of the main board (B) in the form of a PCB, there is a possibility of a short circuit when the cooling plate is faced. By fixing (CH) to indirectly cooled to an appropriate temperature by the cooling unit 1500 that controls the temperature and flow of the cooling fluid flowing inside the cooling chamber (CH), the deterioration of the main board (B) is prevented and the substrate connected thereto It is also configured to prevent deterioration of them.

At this time, the inter rod SA is a member having an insulating function and a kind of sealing and heat dissipation properties, and is closely provided in a rectangular frame shape along the rim.

For this reason, the interstitial seal (SA) is not simply composed of a general silicone resin because it has to perform an important function, but must be made of a specially combined composition.

To this end, in the present invention, 10% by weight of XanthanGum, 10% by weight of triphenylphosphine, 10% by weight of copper powder, 10% by weight of polysiloxane, 10% by weight of aluminum oxide powder, 5% by weight of graphite powder, ethyl acetate 20% by weight and the remaining acrylic resin.

At this time, xanthan gum is very useful as a component of the acrylic heat-dissipating adhesive of the present invention because it has excellent transparency and light transmittance, and has a low viscosity and does not need to be dissolved in a separate solvent. And, triphenylphosphine is added to promote curing and stabilize curing of the pressure-sensitive adhesive.

In addition, copper powder has excellent malleability and ductility, and has excellent electrical conductivity as well as thermal conductivity. In addition, polysiloxane is added to prevent cracks or drop-offs by suppressing an increase in hardness after curing of the pressure-sensitive adhesive to maintain elongation.

In addition, aluminum oxide powder is added to improve heat dissipation properties by implementing thermally conductive filler properties while maintaining the formability after adhesion of the pressure-sensitive adhesive. In addition, although ethyl acetate is usually used as a diluent or solvent for paint, in the present invention, as a dispersion stabilizer, uniform dispersion induction and anti-agglomeration are used to prevent agglomeration or micro-dispersion of a number of powders to prevent deterioration of heat dissipation properties. added for

And, the acrylic resin has a low specific gravity and high adhesive properties while maintaining colorless transparency, so it is the most suitable base resin as an adhesive according to the present invention.

On the other hand, the cooling unit 1500 is a small fluid circuit diagram, and is driven and controlled by a controller (not shown) mounted on the image processor 800 . For this purpose, the cooling unit 1500 is the cooling chamber CH ) and a cooler 1510 and a heater 1520 for cooling or heating the cooling fluid to cool the rear surface of the main board (B) to an appropriate temperature.

Here, the cooler 1510 and the heater 1520 are both small thermoelectric elements (TEM), and cooling is performed by allowing the cooling fluid to contact only the endothermic side to cool, and heating is performed by allowing the cooling fluid to contact only the exothermic side. It works by heating.

In addition, the fluid mixer 1530 is provided to mix the cooled fluid and the heated fluid to adjust the temperature to cool the main board B and supply it to the cooling chamber CH.

In this case, the present invention is equipped with an indirect cooling structure such that the fluid (refrigerant) circulating in the cooler 1510 and the fluid circulating in the heater 1520 do not mix with the main fluid circulating through the fluid mixer 1530. characteristic.

That is, if the fluid (refrigerant) circulating in the cooler 1510 and the fluid circulating in the heater 1520 are mixed in the fluid mixer 1530 to control the temperature, temperature control is not easy and the temperature shock is large, so it is inefficient. It is characterized in that the main fluid and the sub-fluid circulating each of the cooler 1510 and the heater 1520 do not mix with each other.

To this end, a first plate-type indirect heat exchanger 1512 is installed in the first circulation circuit CL1 in which the sub-fluid circulates the cooler 1510 , and the second circulation circuit CL2 in which the sub-fluid circulates the heater 1520 . ), a second plate-type indirect heat exchanger 1522 is installed.

Therefore, the fluid mixer 1530 mixes the indirectly cooled main fluid and the indirectly heated main fluid, that is, the same main fluid with a different circulation path, to control the temperature, so fine temperature control is easy and precise control is possible. .

A fluid supply pipe 1532 for supplying the mixed cooling fluid to the cooling chamber CH is connected to the discharge end of the fluid mixer 1530, and the fluid discharge pipe 1534 is connected to the other side of the cooling chamber CH It is then piped to flow to the first plate-type indirect heat exchanger (1512) and the second plate-type indirect heat exchanger (1522).

Therefore, a distribution valve 1542 is installed in a part of the fluid discharge pipe 1534 so as to be able to enter the second plate-type indirect heat exchanger 1522, and the opening degree is adjusted according to the control signal of the controller. Since the amount can be adjusted, the amount of the main fluid that naturally flows toward indirect cooling is also controlled, so the effect of indirect temperature control can be amplified.

In this case, a fluid circle pump 1540 controlled by the controller is installed on the fluid discharge pipe 1534 to maintain the circulation of the cooling fluid.

In addition, a cooling temperature detector 1514 is installed on the conduit connecting the outlet end of the first plate-type indirect heat exchanger 1512 and the inlet end of the fluid mixer 1530 to transmit the detected temperature to the controller in real time.

In addition, a heating temperature detector 1524 is installed on the conduit connecting the outlet end of the second plate-type indirect heat exchanger 1522 and the inlet end of the fluid mixer 1530 to transmit the detected temperature to the controller in real time.

Thus, the temperature adjusted when the two temperatures are compared and mixed is calculated, the temperature required for cooling is calculated by detecting the current surface temperature of the main board (B), and the cooling fluid is passed through the fluid mixer 1530 according to the temperature. to regulate the temperature of

Accordingly, it is possible to stably cool the main board (B) so that the system can be stabilized as well as the efficiency of the system can be maintained.

In particular, in the present invention, as in the example of FIG. 15 , since the image processor 800 has a housing 810 shape, the main causes of deterioration of the processing modules M are moisture and dust (dust), so that they can be periodically removed. A vacuum processor 1600 is further installed on one side of the housing 810 .

The vacuum processor 1600 maintains the inside of the housing 810 at the same level as atmospheric pressure or slightly lower than atmospheric pressure, thereby improving cooling efficiency through the cooling unit 1500 .

The vacuum processor 1600 includes a cylindrical vacuum chamber 1610 . The vacuum chamber 1610 includes a plurality of connection pipe portions 1620 so as to be in communication with the inside while being sealed through one side of the housing 810 .

In addition, a discharge pipe 1630 is provided at one end of the vacuum chamber 1610, a solenoid valve 1640 is installed on the discharge pipe 1630, and a valve controller 1650 is installed in the solenoid valve 1640.

At this time, although not shown, the valve controller 1650 may be connected to and controlled with the above-described controller (not shown). Alternatively, a separate computer may be connected and controlled, and in this case, the vacuum processor 1600 is not always operated, but is periodically attached and detached and used.

In particular, a moisture absorber 1660 is installed at the end of the discharge pipe 1630 , and an exhaust port 1662 is installed in the center of the outer surface of the moisture absorber 1660 after moisture absorption and dust are collected through the absorber 1660 . Only purified air is discharged into the atmosphere.

In this case, the moisture absorber 1660 is configured to be replaceable in a cylindrical shape.

In addition, a vent hole 1652 is formed in the valve controller 1650 to vent in the event of a sudden overload or to induce air intake through the vent hole 1652 to induce rapid facility stabilization.

In addition, a tube body 1612 communicating with the inside is fixed to a part of the outer circumferential surface of the vacuum chamber 1610, a vacuum detection sensor 1670 is installed in the tube body 1612, and the vacuum detection sensor 1670 is a controller and Connected.

Here, the vacuum detection sensor 1670 preferably uses a digital vacuum sensor, and a digitized numerical value of the vacuum degree inside the vacuum chamber 1610 can be measured.

Accordingly, the controller can continuously check and manage the degree of vacuum inside the housing 810 .

By configuring in this way, it is possible to optimize the drive environment of the mounted processing modules (M) by keeping the inside of the housing 810 in a clean state as well as securing the cooling efficiency.

On the other hand, the ground reference point 900 is capable of wireless communication, and may be designed to respond only in response to a specific signal transmitted within a wireless communication distance with the aircraft 100 .

That is, the aircraft 100 is configured to transmit the coordinate information possessed by the ground reference point 900 to the aircraft 100 in response to a specific signal transmitted by the aircraft 100, and when there are multiple ground reference points, a unique number for each ground reference point 900 It is configured so that they can be distinguished from each other by assigning them.

Here, the ground reference point 900 includes a fixed housing 910 fixed to the reference point installation floor, a generator 920 built into the fixed housing 910, and the generator 920 as shown in the example of FIG. 16 . ) connected to a storage battery 930, a housing door 940 that is formed on a part of the outer peripheral surface of the fixed housing 910 and can be opened and closed, and a reference point controller 950 that is installed on the inner surface of the housing door 940 and includes a memory. ), a spherical rotating shaft ball 960 fixed to the upper end of the fixed housing 910 and partially open, and a pair of hemispheres 970 fitted on the rotating shaft ball 960 and , a wing plate 980 integrally fixed to each hemisphere 970 , a generator shaft 922 fixed to the insertion end 972 of the hemisphere 970 , and wireless communication mounted on the reference point controller 950 . and a wireless communication antenna 990 connected to the module 952 .

At this time, the rotation shaft ball 960 is a kind of spherical rotation shaft. The reason for doing this is to ensure that the rotational degree of freedom is very free for 360°, so that it can be rotated well even in a small wind.

In addition, an opening 962 having a predetermined radius is formed at the top apex of the rotating shaft ball 960, and a pair of hemispheres 970 are seated on the outer periphery.

Here, the hemisphere 970 is a member formed in a hemispherical shape and becomes a rotating body that rotates using the rotating shaft ball 960 as a rotation axis while being fitted in the rotating shaft ball 960 .

In this case, an insertion end 972 is formed at one end of the hemisphere 970 to face each other, and a wing plate 980 is integrally formed at the other end.

Then, the insertion end 972 of the hemisphere 970 is fixed to the generator shaft 922 after being fitted into the opening 962 formed at the upper end of the rotating shaft ball 960 .

In particular, lattice grooves 982 are formed on both sides of the wing plate 980 so that it can easily and largely receive resistance to wind.

In addition, the moisture absorption foam 932 is fixed to the lower portion of the storage battery 930 to absorb moisture generated therein, and the housing door 940 can be opened and replaced if necessary.

In addition, by hanging a plurality of ribbons RB at regular intervals in the vertical direction at each outer end of the wing plate 980 so that the ribbon RB flaps when the wind blows, the resistance to the wind is further increased to increase the rotational force. In this way, the power generation can be increased.

In addition, the wireless communication antenna 990 is configured to be connected to the upper surface of any one of the wing plates 980 , and the signal guide line 954 passing through the inside of the wing plate 980 is the wing plate 980 . It is connected to the plate connecting end 956 configured to be resilient at the bottom, and the module connecting end 958 configured to be resiliently protruded to the plate connecting end 956 is configured to be in contact at all times so as to always receive a signal, and the module The connection terminal 958 is connected to the wireless communication module 952 .

Therefore, even when the blade plate 980 is rotated, it is not interfered with and a smooth connection is possible.

Furthermore, since it is possible to visually check the rotational state, it is possible to further increase safety by preventing the approach of interferences or animals.

With this structure, self-charging is possible and semi-permanent use is possible without drawing commercial electricity.

In particular, the reference point controller 950 is configured to transmit a response signal in response to a specific signal sent by the aircraft 100 .

And, in the present invention, the optical structure of the camera 200 is improved to increase the photographing efficiency.

To this end, as shown in FIG. 17 , the camera 200 according to the present invention includes a body housing 1200 having an optical system implemented therein, an imaging unit 1210 exposed to an upper portion of the body housing 1200 , and the It includes a telephoto lens 1220 exposed to a lower portion of the body housing 1200 .

At this time, the imaging unit 1210 is a means for storing a digital image, and the telephoto lens 1220 is a lens that can be adjusted to various magnifications so as to take a close-up photograph of a feature.

Here, since aerial photographing according to the present invention is photographed by the aircraft 100 at a high altitude, only the magnification of the telephoto lens 1220 is limited. Therefore, in addition to this, it is necessary to implement so that high magnification and ultra-high magnification can be adjusted, and the present invention implements this.

To this end, a first beam split 1230 is installed directly above the telephoto lens 1220, and a first reflection mirror 1240 is installed in parallel with the first beam split 1230 at an interval, and the second A first magnification lens 1250 is installed directly above the 1 beam split 1230, and a second magnification lens 1260 is installed directly above the first reflection mirror 1240, and the first and second magnifications are provided. A second beam split 1280 is completely divided between the lenses 1250 and 1260 by a partition wall 1270, and is disposed directly above the first magnification lens 1250 to coincide with the immediately below of the imaging unit 1210. is installed, a second reflection mirror 1290 is installed directly above the second magnification lens 1260, and a sliding guide SLG is installed on the upper end of the partition wall 1270, and the sliding guide SLG. is provided with a slider SL that selectively opens the first and second magnification lenses 1250 and 1260 while sliding along it, and the slider SL is toothed and moved with a gear GR driven by a motor. configured to be able to

Thus, it is possible to increase the magnification that can be raised by the telephoto lens 1220 alone. At least two high magnifications, that is, a high magnification, and an ultra-high magnification can be further utilized, so that even detailed features can be captured.

For example, if the telephoto lens 1220 has a high magnification, such as the first magnification lens 1250 , the slider SL blocks the beam flow to the second magnification lens 1260 and the beam to the first magnification lens 1250 . Only the flow is in an open state, which is controllable by controlling the driving of the motor by a controller (not shown) to move the gear GR.

Then, the subject is imaged in the order of the telephoto lens 1220 → the first beam split 1230 → the first magnification lens 1250 → the second beam split 1280 → the imaging unit 1210 .

On the other hand, if it has passed through the second magnification lens 1260, which is an ultra-high magnification, the slider SL opens the beam flow to the second magnification lens 1260 and blocks only the beam flow to the first magnification lens 1250, This is controllable by moving the gear GR by controlling the driving of the motor by a controller (not shown).

Then, the subject is the telephoto lens (1220) → the first beam split (1230) → the first reflection mirror (1240) → the second magnification lens (1260) → the second reflection mirror (1290) → the second beam split (1280) → Images are captured in the order of the imaging unit 1210 .

After all, according to the present invention, it is possible to combine two high magnifications (high magnification, ultra-high magnification) in spite of a very narrow space, so that it is easy to control various magnifications, and a clearer image can be obtained.

100; aircraft 200; camera
300; detection sensor 400; touch screen panel
500; control unit 600; GPS detection sensor
700; GPS satellite 800; image processor
900; ground reference point

Claims (2)

a camera 200 installed in the aircraft 100; The first and second detection sensors 300 and 310 installed in the aircraft 100 to detect the photographing obstruction object (B) moving the lower portion of the camera 200; a touch screen panel 400 installed in the aircraft 100 and inputting a control signal for controlling the control unit 500 and displaying output contents according to the inputted control signal; When installed in the aircraft 100 and the aircraft 100 reaches the image capturing area while the aircraft 100 is in operation, the image capturing area is photographed through the camera 200, and an object obstructing the capturing is detected by the sensing sensor 300 during filming. When a signal is received, the image recording area is designated as a re-photography area, and when a control signal to reset the shortest air route of the re-photographed area is inputted from the touch screen panel 400, the shortest air route to the re-photographed area is set, The control unit 500 that transmits the captured image to the image processor 800 of the ground center communicates with the aircraft 100 and transmits the ground reference coordinates, and compares the ground reference coordinates with the position coordinates of the aircraft 100 and shoots In the optical control device of the aerial photographing camera used in the aerial photographing system including;
The camera 200 includes a body housing 1200 having an optical system implemented therein, an imaging unit 1210 exposed at an upper portion of the body housing 1200 , and a telephoto lens exposed under the body housing 1200 . (1220);
A first beam split 1230 is installed directly above the telephoto lens 1220 , and a first reflection mirror 1240 is installed in parallel with the first beam split 1230 at an interval, and the first beam split A first magnification lens 1250 is installed directly above 1230, a second magnification lens 1260 is installed directly above the first reflection mirror 1240, and the first and second magnification lenses 1250 , 1260) is completely divided by a barrier rib 1270, and a second beam split 1280 is installed directly above the first magnification lens 1250 to coincide with the directly below of the imaging unit 1210. , a second reflection mirror 1290 is installed directly above the second magnification lens 1260 , and a sliding guide SLG is installed on the upper end of the partition wall 1270 , and the sliding guide SLG has the sliding guide SLG according to this. A slider SL for selectively opening the first and second magnification lenses 1250 and 1260 while sliding is provided, and the slider SL is tooth-engaged with a gear GR driven by a motor to be movable. An optical control device for an aerial photographing camera used in an aerial photographing system, characterized in that. According to claim 1,
The ground reference point 900 includes a fixed housing 910 fixed to the reference point installation floor, a generator 920 built into the fixed housing 910, a storage battery 930 connected to the generator 920, and the A housing door 940 that is formed on a part of the outer peripheral surface of the fixed housing 910 and can be opened and closed, a reference point controller 950 installed on the inner surface of the housing door 940 and including a memory, and the fixed housing 910 A spherical rotating shaft ball 960 fixed to the upper end and partially open, a pair of hemispheres 970 fitted on the rotating shaft ball 960, and each hemisphere 970 integrally fixed The wing plate 980, the generator shaft 922 fixed to the insertion end 972 of the hemisphere 970, and the wireless communication antenna 990 connected to the wireless communication module mounted on the reference point controller 950 and An optical control device for an aerial photographing camera used in an aerial photographing system, characterized in that it includes a plurality of ribbons (RB) suspended at regular intervals in the vertical direction at each outer end of the wing plate (980).

Images